Present Simple/ Past simple - To do To be

Present Simple/Past Simple Verb ReviewTo doPresent SimplePast Simplesubject+-?+-?I/you/we/theyDoDo not (Don’t)Do IDidDid not (Didn’t)Did theyHe/She/ItDoesDoes not (Doesn’t)Does heTo bePresent SimplePast Simplesubject+-?+-?Iam (I’m)am not (I’m not)Am Iwaswas not (wasn’t)Was Iyou/we/theyare (‘re)are not (aren’t)Are wewerewere not (weren’t)Were theyHe/She/ItIs (‘s)is not (isn’t)Is hewaswas not (wasn’t)Was sheRegular formPresent SimplePast Simplesubject+-?+-?I/you/we/theyinfinitiveinfinitive notInf. [subject]Inf.+edDidn’t [inf]Did [sub][inf]He/She/Itinfinitive+sInfinitive+s not Inf.+s [subj]